Common Issues / Things To Be Aware Of for Alan's OS Class
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Methods
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1. slice vs. splice
   These are not the same method. Make sure to use the right one!
   * slice: Creates a new array from a designated length.
   * splice: Changes the original array based on parameters.

2. substr vs substring
   Again, these are not the same method. Make sure to use the right one!
   * substr: First Parameter specifies where to start, but the second specifies string length, not end position.
   * substring: First Parameter specifies where to start, and the second specifies where to end.


Web Development
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1. CSS references in Javascript.
   If a CSS reference is made in JS without JS initialization, it will not work even with external CSS.
   To edit CSS in JS, a reference must be initialized/defined in JS, regardless of external CSS existence.


OS Specific
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1. Off-by-1 errors on CPU Op codes can cause seemingly wild inaccuracies from the desired output.
   * Do not be discouraged. To debug, trace the input/output digit by digit if necessary.
2. String to Number back to String data loss.
   * Converting '02' to a number, 2, then back to a string produces '2,' not '02.'
     Be careful! This leads to the problem specified above.